SEA Design & Build

SEA Design & Build Bringing your dream home to life — from concept to completion. We specialize in remodels, additions, and new construction across the Bay Area.

SEA is a premier Design/Build firm located in San Mateo. Over the last 3 decades, we’ve designed and constructed over 3,500 homes in the San Francisco Bay Area. We specialize in additions, full-home renovations, and any portion thereof, particularly baths and kitchens. Since our inception in 1989, we’ve become a leader in design, remodeling, and additions in San Francisco and on the Peninsula. Wha

t Sets Us Apart? We are creating your unique home—not just remodeling a house—so we listen, then design and build your home with all your wants and needs. We're one of the most respected Design/Build contractors in the SF Bay Area, with stellar reviews and design awards. We specialize in exquisite design and the highest quality construction. We stand by our work, even years after your job is complete. We keep our clients completely informed 24 / 7 using our online management system. It includes all scheduling, budgets, change orders, and weekly progress photos and reports.

✨ Before & After Bathroom Makeover ✨This bathroom went from outdated to calm and modern.Soft colors, clean finishes, and...
06/20/2026

✨ Before & After Bathroom Makeover ✨

This bathroom went from outdated to calm and modern.
Soft colors, clean finishes, and simple details turned it into a relaxing, spa-like space.

Designed and built by SEA Design & Build.

Would you love a bathroom like this in your home? 🤍



From design to completion, your kitchen is in expert hands.SeaDesignBuild delivers custom kitchen remodeling with though...
06/17/2026

From design to completion, your kitchen is in expert hands.

SeaDesignBuild delivers custom kitchen remodeling with thoughtful design, premium materials, and craftsmanship you can trust.

Visit SeaDesignBuild.com or call 650-287-4202

07/25/2025

Our customers say it best! Lyssa's review is proof that quality siding and incredible staff makes a difference. Head to Yelp to read more reviews or share your own story. We’d love to hear from you!

Starting the weekend right with an affogato in hand! ☕️🍦
07/12/2024

Starting the weekend right with an affogato in hand! ☕️🍦

We’re obsessed with our newest kitchen combo of stunning brass, warm creams and deep burnished browns. Can’t wait to see...
04/29/2024

We’re obsessed with our newest kitchen combo of stunning brass, warm creams and deep burnished browns. Can’t wait to see it come to life in our Baywood project.

With the stormy weekend ahead we’re dreaming of spring with this new clients kitchen scheme. Snacking on chocolate Eas...
03/01/2024

With the stormy weekend ahead we’re dreaming of spring with this new clients kitchen scheme. Snacking on chocolate Easter eggs helps us get in the mood. 🐣

Progress update on our Half Moon Bay ADU. Exterior is coming together and walls are up. Swipe to catch a glimpse of the ...
03/01/2024

Progress update on our Half Moon Bay ADU. Exterior is coming together and walls are up. Swipe to catch a glimpse of the future kitchen.

We’ve been fortunate to step into various homes through our projects this year. The connections we’ve made have become a...
01/01/2024

We’ve been fortunate to step into various homes through our projects this year. The connections we’ve made have become an integral part of our extended SEA family, making this year not just about projects but about the people who’ve opened their doors and hearts to us. Here’s to the homes we entered and the friends who made us feel at home. May the coming year bring more cherished moments and shared experiences. Cheers to a wonderful New Year ahead!

Address

763 Polhemus Rd. Suite 1
San Mateo, CA
94402

Opening Hours

Monday 8am - 4pm
Tuesday 8am - 4pm
Wednesday 8am - 4pm
Thursday 8am - 4pm
Friday 8am - 4pm

Telephone

+16502874202

Website

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